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WetHat💦Checking for an empty list in Python - Python Morsels (<a href="https://mastodon.social/@treyhunner" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@treyhunner</a>)Various methods to check if a list is empty in Python: ➡️ checking the list's length, ➡️ evaluating the list's truthiness ➡️ comparing the list to another empty list <a href="https://fosstodon.org/tags/Python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Python</a> <a href="https://fosstodon.org/tags/Truthiness" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Truthiness</a> <a href="https://fosstodon.org/tags/PEP8" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PEP8</a> <a href="https://fosstodon.org/tags/DuckTyping" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DuckTyping</a> <a href="https://fosstodon.org/tags/Programming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Programming</a> <a href="https://fosstodon.org/tags/PythonProgramming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PythonProgramming</a><a href="https://www.pythonmorsels.com/checking-for-an-empty-list-in-python/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.pythonmorsels.com/checking-for-an-empty-list-in-python/</a>

timvwSurprised to see that many examples on <a href="https://peps.python.org/pep-0008/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://peps.python.org/pep-0008/</a> are not using 2 lines between "top-level" functions.. <a href="https://fosstodon.org/tags/python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#python</a> <a href="https://fosstodon.org/tags/pep8" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pep8</a>

Hugo van Kemenade🆕 🎨 Inspired by <a href="https://pep8.org" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://pep8.org</a>, we've added green and red sidebars to the code examples at <a href="https://peps.python.org/pep-0008/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://peps.python.org/pep-0008/</a> to help illustrate which are recommended and which are not recommended.For accessibility, we don't rely on colour alone to convey information; as before, the info about whether examples are recommended is included in the text. <a href="https://www.accessguide.io/guide/colorblind" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.accessguide.io/guide/colorblind</a>We can add similar borders to help illustrate other PEPs too.<a href="https://mastodon.social/tags/Python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Python</a> <a href="https://mastodon.social/tags/PEP8" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PEP8</a> <a href="https://mastodon.social/tags/PEPs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PEPs</a> <a href="https://mastodon.social/tags/PEP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PEP</a>

David Zaslavsky<a href="https://mastodon.social/@hugovk" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@hugovk</a> <a href="https://mastodon.social/@joranelias" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@joranelias</a> Yes, I know that's in PEP 8 and in many other style guides that either copied large parts of PEP 8 or independently came to the same conclusion. But what I meant was, I couldn't tell you why that landed in PEP 8 and all those other guides in the first place, other than some vague sense of it looking better.<a href="https://techhub.social/tags/Python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Python</a> <a href="https://techhub.social/tags/PEP8" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PEP8</a> <a href="https://techhub.social/tags/style" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#style</a>

Hugo van Kemenade<a href="https://techhub.social/@diazona" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@diazona</a> <a href="https://mastodon.social/@joranelias" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@joranelias</a> It's in PEP 8:Always surround these binary operators with a single space on either side, assignment (=)... Don’t use spaces around the = sign when used to indicate a keyword argument, or when used to indicate a default value for an unannotated function parameter...When combining an argument annotation with a default value, however, do use spaces around the = sign...<a href="https://peps.python.org/pep-0008/#other-recommendations" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://peps.python.org/pep-0008/#other-recommendations</a> PEP 8 is for the stdlib, you can ignore for your code.<a href="https://mastodon.social/tags/Python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Python</a> <a href="https://mastodon.social/tags/PEP8" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PEP8</a> <a href="https://mastodon.social/tags/style" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#style</a>

C.<a href="https://hachyderm.io/@arfs6" class="u-url mention">@arfs6</a> PEP-8 still says 79 chars IIRC, but at this point that's honoured more in the breach than the observance.With modern screens and editors, >80 isn't really a problem for most. Black defaults to 88; I happen to like 96. A company I work for has standardized on 120, which IMHO is too wide.Pick something you like, configure black/your editor/etc to observe it, and be consistent, and you'll be fine.<a href="https://mindly.social/tags/PEP8" class="mention hashtag" rel="tag">#PEP8</a> <a href="https://mindly.social/tags/linewidth" class="mention hashtag" rel="tag">#linewidth</a> <a href="https://mindly.social/tags/width" class="mention hashtag" rel="tag">#width</a> <a href="https://mindly.social/tags/wide" class="mention hashtag" rel="tag">#wide</a> <a href="https://mindly.social/tags/chars" class="mention hashtag" rel="tag">#chars</a> <a href="https://mindly.social/tags/code" class="mention hashtag" rel="tag">#code</a> <a href="https://mindly.social/tags/black" class="mention hashtag" rel="tag">#black</a>

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